Dirigible lamp.



. GUDLEY.

v mamme mmm. APSHCATWN FILED FEEL 15. 91?.

Patented De@ 4, 19W.

2 SHEETS-SHEET E.

liti

l imlTT I i, ll @all o ...man

UHARLESIE. GJLEY, F DETROIT, MCHIGA'N', ASSIGNOR TO LEIDM'UNDS dltlllhliCRFEATION, OF DETROT, MICHIQAI, A. CORBJATION' Ol? NEW' "SZ'ltN,

DRIGBL'E LAMP.

Application filed February 1.5. 191'?.

.To all whom t may concern:

Be it known that l, @imanes l. (donner, a citizen of' the United States,and residing` at Detroit, in the county of YWayne and State of Michigan,have invented a new and lmproved Dirigible Lamp, of which the following`is a specification.

This invention relates to diripgible head lights especially those thatmay be mounted on automobiles and power boats, and its object iS toprovide a. mounting;` 'for lamps of this character which will hold thelamp iirmly in the desired position. which is readily adjustable andwhich can be constructed for a moderate price. This invention consiStsin the combination with the lamp and the support for the same. oi anovel clampn ing,r device which can be adjusted within wide limits and anovel universal joint `connecting the lamp and the clamping device. litalso consists in formino; an adjustable ball-andsocket joint upon theclamping` device which ball-and-so'cket joint supports the lamp. ltfurther consists `in the details of construction illustrated in theaccompanying; drawings and particularly pointed out in the claims.

In the drawing, Fig-ure 'l is a plan oi the lamp and clamping member anda horizontal section of the ball-and-socket joint. Fig. '2 is a Sectionon the lilies Q--Q et Figs. l and 4. Fig'. 3 is a section on the line-i-S of Fig. 2. Fig. 4L is an elevation of the clampingr members and -avertical" section ot the ball-and-soclret joint. Fig'. 5 is a plan oilthe lamp and clamping member and a horizontal section oit a modilied'form ot the univeisal joint. Fig'. G is an elevation ot the clampingdevice and a central vertical section of the 'universal joint. Fig. 7 isa section on the line 7 7 et Fig. 6. Fig. S is a perspective view ot asocket member oit. the universal joint. Fig'. 9 is a perspective view ofthe revoluble disk used in this particular uni-v versal joint.

Similar reference characters reter' to like parts throughout the severalviews.

The clamping device shown in the drawings consists et a main member land a relatively movable member 2. Each one of these portions is boredand a belt 3 is slidable Within a proper hole in each of these members.Each bolt 3 may be provided with a spline t that slides in a groove 5formed in the bore of each et these two parts. rll`he Specification ofLetters latent.

Patented llico. eh'lliilfi.

serial no. learn'.

bolts 3 are provided with jaws 6 adapted to engage the supports 7 onwhich the lamp .is mounted. The two members oiI the clamping device arecounter-bored to receive the long cylindrical nuts S by means of whichthe jaws 6 are drawn up against the support 7. It desired.,split-washers Si may be cin-- ployed to prevent the nuts 'from turningbackward. rlthe two clamping members are forced toward each other bvmeans of the screws l0 which may be provided with splitwasher ll to keenthem from turningl backr ward. At their rear ends,- ene or theseclamping` members is provided with a small post 12 to en aee in a slotformed in the other member. It will therefore be seen that the aws 6 maybe swungr apart as Ytar as desired when the screws l0 are turned back,to permit the jaws to be passed around the support 7. after which thescrews lO are turned down hard. This peculiar construction is adapted toengage any desired type oi support. whether round or polygonal. And nutsS are then turned down until the enl@agement between lthe clainj'iinp'device and the support 7 is suiiicicntlv secure. This support 7 may beany desired angle to the vertical. but for the purpose olt thisdescription will be considered as vertical for the purpose etclearircffs.

lrojeetinlgiv upward 'from the clamp member l is the neelr 14 whichcarries the head l5 which constitutes a portion ot the socket ot theball joint. rlllhis part vl5 has` upper and lower jaws lo between whichthe stem 1G. which is firmly held in the boss 'i7 on the lamp body 1S.can swing' horizontally. The part l5 is bored and screw threaded toreceive the plus- 2l which is provided with a recess to receive a ilatsheet or pad l5) of cork. `telt or similar material. The stem l@ is heldin the boss 17 by means et the pin QG. A small screw 2l may prevent theplug 2l trom turning` atter it has once been adjusted.

'To assemble this mountingl tor the lamp the plug` 21 is removed and thestem 1G with the ball 2Q attached thereto is slipped into positionthrough the opening thus lett. The stem 16 is slipped into the hole 23in the boss 17 and the pin 20 is driven into posii tion. The plufr 2l isthen screwed down into the ball 2Q until that is held sudieientlytightly to prevent it from turning; under any but unusual stresses.turned on the horizontal axis of the stem 16 titl Miti

litlti lil@ and it mav be swung around a vertical axis passing throughthe center of the ball 22, the stem 16 movingin the space 24 between thejaws 15a of the head 1 5. rThe pad 19 may also 'serve as a receptacle tohold a small amount ot lubricating oil for the ball 22.

ln a construction shown in Figs. to S) inclusive, the clamping device issimilar to those just described, and consists ot the main portion 1, therelatively movable portion 2, the bolts 3, the nuts S on said boltswhich cause the jaws on these bolts to engage the upright 7, the Smallpost 12 and its socket and the screws 10 to torce the two clampingmembers toward each other. Integral with the main clamping member 1 isthe hea d 30, provided with a circular seat to receive the circularbearing member 31 which is pretq erablv ot steel. A screw 32 passesthrough a hole 33 in the cap 3l. and into a screw threaded hole in thehead 30 and holds this 'cap and the circular bearing member 35, mountedin the circular seat 3G of the cap, in proper relation to bearing member31. These two bearing members 3l and 35 are rotatable in the parts 30and 34 on a vertical axis, and each may be formed with a hole 37 toreceive a flat keeper 3S. As shown in Fig. G, these two keepers areopposite to cach other and extend into a `circumferential groove 39 inthe stem l10, which stem is secured in the boss 41 carried by the body42 of the lamp. It desired a pin 43 may be employed to hold this stem inplace in the boss.

To assembled this mounting, the screw 32 is removed and the cap 34 andthe bearing member 35 positioned by the cap are lifted up to permit thestem el() to be inserted between the two bearing members 31 and 35, thekeeper 38 in the lower bearing member 21 serving to position the stem.The upper bearing member and the cap 34 are then returned to theiroriginal position and the screw 32 is inserted and turned down until theparts are so firmly engaged that the lamp cannot swing on the horizontalpivot and the lamp and the two bearing members cannot swing on avertical pivot without the application of considerable force. ln orderto keep the members in proper alincment the cap 34 may be provided withflanges 4.5 that tit around the rear portion 46 ot the head 30.

The faces of the two clamping membersl and 2 in both cases are beveled,as shown in Figs. l, 3 and 5, to form seats to receive the uprightsupports 7 and thus cause these supports to always retain a positionsubstan- .tially parallel to the opposing faces ot the clamping membersl and 2.

I claim 1. In a lamp mounting, the combination of a main clai'npingmember and an auxiliary clamping member, screws adapted to force saidclamping members toward each other, a bolt .slidable in each of saidclamp- A a main and an auxiliary clampin bearing face of the other, oneof said members provided at the end opposite said bearing face with asocket and the other with a pin adapted to engage in said socket, eachof said bearing members provided with a longitudinal hole, a threadedbolt slidable in each hole and having a jaw extending toward the otherbolt, the ends of said holes' opposite said jaws being counterbored, aninternally threaded sleeve mounted in each countcrbore and receiving thebolt therein and having an enlargement on the outside of the memberwherein it is mounted, a. pair of screws extending transversely of thebolts` to secure the clamping members together, said screws beingmounted between the bearing faces and the pin and socket of said bearingmembers, a universal joint mounted on one of said bearing members, and alamp carried by said universal joint.

3. In a lamp mounting, the combination ot a main and an auxiliaryclamping member, means to fulcrum one on the other, each of said membershaving a bearing face at an angle to the bearing face of the other,means mounted between the fulcrum and lbearing faces to press saidmembers toward each other, each of Said bearing members being formedwith a longitudinal hole provided with a groove, a bolt slidable in eachhole and having a spline extending into the groove and also having a jawon the end adjacent the bearing tace of the member in which it ismounted and threads on the opposite ends, said holes being connterboredat the ends opposite said jaws, cylindrical internally threaded sleevesmounted in said counterbores and on said bolts and having their outerends extending beyond said clamping members and formed with polygonalheads, a lamp provided with a boss and a stem carried by said boss, anda` universal joint between said stem and said clamping device.'

4. In alamp mounting, the combination of member, means to secure themtogether, a cad connected to one of said members and formed with asocket for a ball and a pair of jaws having a space between them inalinement with the socket, a lamp, a stem carried by the lamp and a ballat lthe end of said stem,

a plug adjustably fitting in said socket and engaging said ball.

5. In a lamp mounting, the combination of a main and an auxiliaryClamping member, means to secure them together, a head connected to oneof said. members and foi-med with a socket for a ball and a pair of jawshaving a space between them in alinement with the socket, a lamp, a stemcarried by the lamp and a ball ,at the end 10 of said Stem, a plugadjustably litting in said socket and engaging said ball, said plugbeing formed with a pocket having a resilient pad to engage said ball.

CHARLES E. G-UDLEY.

